Spinal Tap A to Zed

Matchstick Men: Headliner backed by members of Tap (minus
keyboardist Denny Upham) during 1968 tour to support the album
"Matchstick Men." Tap had not been involved with creating
the album but supported the Men on tour after the disappointing
sales of Tap's second album, "We Are All Flower People"
forced a reevaluation of its musical mission. It was during this
time that Tap developed (or stole  accounts vary) its harder
hitting twin-lead-guitar style.